James Taylor's maiden half-century moved England into a good position on the second day of the third and final Test against Pakistan in Sharjah.Taylor, playing his first Test for three years, made an unbeaten 74 to move the tourists to 222 for 4.England accelerated late on a largely painstaking day to close 12 behind.Alastair Cook made 49, Ian Bell 40 and Jonny Bairstow 37 not out for the tourists, who must win to avoid a series defeat.